335xd Remap
Author
Discussion

julian64

Original Poster:

14,325 posts

285 months

Tuesday 16th May 2017
quotequote all
okay so my cars out of warranty now, and I'm wondering whether to upgrade by either a new car, or a remap.

Anyone have any experience of an 335xd remap and recommendations?

Googling the internet gives some wild claims about the car with remaps to 440hp which I think would last two seconds before giving out frown.


Mike335i

6,088 posts

133 months

Tuesday 16th May 2017
quotequote all
More like 350hp for an e90 335d or about 375 for the F30.

Over 400 would include serious modifications.

julian64

Original Poster:

14,325 posts

285 months

Tuesday 16th May 2017
quotequote all
Mike335i said:
More like 350hp for an e90 335d or about 375 for the F30.

Over 400 would include serious modifications.
What like this?

https://www.youtube.com/watch?v=9ezvAHPMqNQ

335d

758 posts

149 months

Tuesday 16th May 2017
quotequote all
Plenty have remapped the 335d on the Bimmerpost forum with a wide variety of results. There have been a couple of engine problems and smoke post-remap, but others have been running around 370bhp for many tens of thousands of miles without issue.

Personally, as I intend to run my car for another 3-4 years to somewhere close to 100k miles, I am not going to risk it, but take a look at Bimmerpost for advice.

Mike335i

6,088 posts

133 months

Tuesday 16th May 2017
quotequote all
julian64 said:
Wow, that is impressive gains if accurate. I'm surprised that an exhaust and a stage 3 map can release so much power over a stage 1 map. I suspect it probably includes upgraded turbo.

Exiting quote 410 from their stage 3 kit which include turbo upgrade. https://ecotune-scotland.co.uk/product/ecotune-35d...

Edited by Mike335i on Tuesday 16th May 21:19

ratty6464

637 posts

241 months

Wednesday 17th May 2017
quotequote all
Great idea and you won't be disappointed if it's done correctly and safely.

Get yourself to Simon at emaps - he has the best rep built over many years and loads of repeat customers.

On an f series 335 he maps it to a safe and reliable 370bhp and circa 520lbft torque ensuring the gearbox torque limit isn't breached. Others push closer to 400bhp but I would be slightly concerned about long term reliability.

julian64

Original Poster:

14,325 posts

285 months

Wednesday 17th May 2017
quotequote all
Anyone have any real world experience?

I could go across to bimmerforums but seeing as this is pistonheads and I bet there are a few about

ratty6464

637 posts

241 months

Thursday 18th May 2017
quotequote all
Yes I know of a remapped 435d 😃

It's excellent and turns it into a different car. No more flatness at 3000rpm. Now it just pulls hard all the way through with a rush just before 5000rpm. It's so much more rewarding you won't be disappointed.

JNW1

9,520 posts

225 months

Thursday 18th May 2017
quotequote all
ratty6464 said:
Great idea and you won't be disappointed if it's done correctly and safely.

Get yourself to Simon at emaps - he has the best rep built over many years and loads of repeat customers.

On an f series 335 he maps it to a safe and reliable 370bhp and circa 520lbft torque ensuring the gearbox torque limit isn't breached. Others push closer to 400bhp but I would be slightly concerned about long term reliability.
Yes, I understand the torque limit of the gearbox fitted to the F3x 335d is 700Nm which pretty much equates to your figure of circa 520lb/ft; personally I wouldn't go for a remap that went beyond that.